Questions by Kchak

Questions by Kchak

Given |u| = 10 at ∠135° and |v| = 5 at ∠30°, what expression can be used to find |u + v|? (10)2 + (5)2 – 2(10)(5) cos(45°) (10)2 + (5)2 – 2(10)(5) cos(75°) (10)2 + (5)2 – 2(10)(5) cos(105°) (10)2 + (5)2

asked Jul 3, 2021

2 answers

0 votes

75.8k views

How much pressure is applied to the ground by a 78 kg man who standing on square stilts that measure 0.04 m on each edge ? Answer in units of Pa.

asked Mar 6, 2021

1 answer

1 vote

20.2k views

What is the solution to 3/4(x+8)>1/2(2x+10)

asked Feb 26, 2021

1 answer

3 votes

44.0k views

2 Points What is an acceptable reason for a new federal bureaucratic organization to be created as an independent executive agency? A. Congress would like to hide its activities from the public. B. Its

asked Oct 25, 2020

2 answers

4 votes

219k views

Can two or more elements be combined chemically to make a new element??

asked May 24, 2019

2 answers

4 votes

821 views

Math god help me please!!!

asked May 8, 2019

2 answers

4 votes

178k views

What is 32\6 - 4 5\7

asked Jan 8, 2019

1 answer

2 votes

19.6k views

What is 8x1+4x(1/10)+7x(1/100) in standard form

asked Jun 1, 2018

2 answers

3 votes

136k views

Of the students in your class 25% walk to school.what fraction of the students walk to school?

asked Apr 1, 2018

1 answer

2 votes

177k views

Who attacked the U.S.S. Maddox on August 2, 1964 in the Gulf of Tonkin?

asked Feb 2, 2018

2 answers

5 votes

145k views

Explain,using your own example ,why you must always give a unit when reporting a measurement

asked Dec 4, 2017

1 answer

4 votes

155k views

Ellen purchased a dishwasher, which cost $315 before the 9.22% sales tax. She used the machine an average of 10 times per week for the next six years, at which point she replaced it. Each time she ran

asked Sep 25, 2017

2 answers

3 votes

188k views

Megan decided to run in a 10-km race. Her time of 82 minutes was twice as long a the winner's time. What was the winner's time?

asked Jun 22, 2017

1 answer

3 votes

21.7k views

What is $45 with a markup of 57%

asked Feb 27, 2017

1 answer

0 votes

233k views

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